Suspension assembly having a microactuator electrically connected to a gold coating on a stainless steel surface
View Patent ↗A novel suspension assembly includes a suspension assembly mounting plate, a microactuator mounting structure extending from the suspension assembly mounting plate, a load beam extending from the microactuator mounting structure, and a laminated flexure attached to the load beam. The laminated flexure includes a tongue that has a read head bonding surface. The suspension assembly includes a stainless steel surface having a gold coating, and a piezoelectric microactuator attached to the microactuator mounting structure and electrically connected to the gold coating.
1. A suspension assembly comprising:
a suspension assembly mounting plate;
a microactuator mounting structure extending from the suspension assembly mounting plate;
a load beam extending from the microactuator mounting structure; and
a laminated flexure attached to the load beam, the laminated flexure including a tongue that has a read head bonding surface;
wherein the suspension assembly includes a stainless steel surface having a gold coating, and further comprises a microactuator attached to the microactuator mounting structure and electrically connected to the gold coating,
wherein the load beam includes at least one hinge plate and the stainless steel surface is a stainless steel surface of the hinge plate.
2. The suspension assembly of claim 1 wherein the at least one hinge plate and the load beam are a single component having material continuity rather than being an assembly of subcomponents.
3. A head gimbal assembly (HGA) comprising:
a suspension assembly, the suspension assembly including
a suspension assembly mounting plate;
a microactuator mounting structure extending from the suspension assembly mounting plate;
a load beam extending from the microactuator mounting structure; and
a laminated flexure attached to the load beam, the laminated flexure including a tongue;
wherein the suspension assembly includes a stainless steel surface having a gold coating, and further comprises a microactuator attached to the microactuator mounting structure and electrically connected to the gold coating; and
a read head bonded to the tongue,
wherein the load beam includes at least one hinge plate and the stainless steel surface is a stainless steel surface of the hinge plate.
4. A disk drive comprising:
a disk drive base;
a spindle attached to the disk drive base;
a disk mounted on the spindle;
a coarse actuator attached to the disk drive base, the coarse actuator including an actuator arm;
a suspension assembly, the suspension assembly including
a suspension assembly mounting plate attached to the actuator arm;
a microactuator mounting structure extending from the suspension assembly mounting plate;
a load beam extending from the microactuator mounting structure; and
a laminated flexure attached to the load beam, the laminated flexure including a tongue;
wherein the suspension assembly includes a stainless steel surface having a gold coating, and further comprises a microactuator attached to the microactuator mounting structure and electrically connected to the gold coating; and
a read head bonded to the tongue,
wherein the load beam includes at least one hinge plate and the stainless steel surface is a stainless steel surface of the hinge plate.